diff --git a/core/net/tcpip.c b/core/net/tcpip.c
index 384730396..51f0ce0e6 100644
--- a/core/net/tcpip.c
+++ b/core/net/tcpip.c
@@ -30,7 +30,7 @@
  *
  * Author: Adam Dunkels <adam@sics.se>
  *
- * $Id: tcpip.c,v 1.4 2006/08/10 16:43:32 bg- Exp $
+ * $Id: tcpip.c,v 1.5 2007/03/15 19:41:29 adamdunkels Exp $
  */
 
 #include "contiki-conf.h"
@@ -188,7 +188,7 @@ udp_attach(struct uip_udp_conn *conn,
 }
 /*---------------------------------------------------------------------------*/
 struct uip_udp_conn *
-udp_new(uip_ipaddr_t *ripaddr, u16_t port, void *appstate)
+udp_new(const uip_ipaddr_t *ripaddr, u16_t port, void *appstate)
 {
   struct uip_udp_conn *c;
   uip_udp_appstate_t *s;
@@ -403,7 +403,6 @@ PROCESS_THREAD(tcpip_process, ev, data)
   
   while(1) {
     PROCESS_YIELD();
-
     eventhandler(ev, data);
   }
   
diff --git a/core/net/tcpip.h b/core/net/tcpip.h
index 087bc7d2e..a27e2cb30 100644
--- a/core/net/tcpip.h
+++ b/core/net/tcpip.h
@@ -60,7 +60,7 @@
  *
  * Author: Adam Dunkels <adam@sics.se>
  *
- * $Id: tcpip.h,v 1.5 2006/09/09 23:24:39 oliverschmidt Exp $
+ * $Id: tcpip.h,v 1.6 2007/03/15 19:41:29 adamdunkels Exp $
  */
 #ifndef __TCPIP_H__
 #define __TCPIP_H__
@@ -223,7 +223,7 @@ void udp_attach(struct uip_udp_conn *conn,
  * \return A pointer to the newly created connection, or NULL if
  * memory could not be allocated for the connection.
  */
-CCIF struct uip_udp_conn *udp_new(uip_ipaddr_t *ripaddr, u16_t port,
+CCIF struct uip_udp_conn *udp_new(const uip_ipaddr_t *ripaddr, u16_t port,
 				  void *appstate);
 
 /**
diff --git a/core/net/uip.c b/core/net/uip.c
index 017b287a0..643598d8f 100644
--- a/core/net/uip.c
+++ b/core/net/uip.c
@@ -41,7 +41,7 @@
  *
  * This file is part of the uIP TCP/IP stack.
  *
- * $Id: uip.c,v 1.6 2006/08/26 23:40:46 oliverschmidt Exp $
+ * $Id: uip.c,v 1.7 2007/03/15 19:41:29 adamdunkels Exp $
  *
  */
 
@@ -455,7 +455,7 @@ uip_connect(uip_ipaddr_t *ripaddr, u16_t rport)
 /*---------------------------------------------------------------------------*/
 #if UIP_UDP
 struct uip_udp_conn *
-uip_udp_new(uip_ipaddr_t *ripaddr, u16_t rport)
+uip_udp_new(const uip_ipaddr_t *ripaddr, u16_t rport)
 {
   register struct uip_udp_conn *conn;
   
diff --git a/core/net/uip.h b/core/net/uip.h
index c33716ab7..a305252dc 100644
--- a/core/net/uip.h
+++ b/core/net/uip.h
@@ -46,7 +46,7 @@
  *
  * This file is part of the uIP TCP/IP stack.
  *
- * $Id: uip.h,v 1.8 2007/02/01 14:27:17 bg- Exp $
+ * $Id: uip.h,v 1.9 2007/03/15 19:41:29 adamdunkels Exp $
  *
  */
 
@@ -776,7 +776,7 @@ CCIF void uip_send(const void *data, int len);
  * \return The uip_udp_conn structure for the new connection or NULL
  * if no connection could be allocated.
  */
-struct uip_udp_conn *uip_udp_new(uip_ipaddr_t *ripaddr, u16_t rport);
+struct uip_udp_conn *uip_udp_new(const uip_ipaddr_t *ripaddr, u16_t rport);
 
 /**
  * Removed a UDP connection.